Pumps – One fluid pumped by contact or entrainment with another – Liquid piston
Patent
1990-02-12
1991-12-17
Bertsch, Richard A.
Pumps
One fluid pumped by contact or entrainment with another
Liquid piston
417103, F04F 1100
Patent
active
050730908
ABSTRACT:
A compressor utilizes a fluid piston to achieve high volumetric efficiency and produce moisture-free, clean, compressed fluid. The compressor has two hollow chambers which are interconnected by a conduit system having a pump located in it. The compressor contains a sufficient volume of noncompressible transfer fluid to completely fill one of the cylinders and the conduit system. A switching system causes the pump to pump the transfer fluid into a first chamber until that chamber is completely filled and then pump the transfer fluid out of the first chamber and into the second chamber. When the second chamber is completely filled the switching system again causes the direction the transfer fluid is being pumped to reverse and the cycle is repeated. Compressible fluid inlets located in the chambers permit compressible fluid to be drawn into a chamber when transfer fluid is being pumped from it, and compressible fluid outlets permit fluid that is compressed when transfer fluid is pumped into a chamber to be pumped out of the chamber. A storage tank fluidly connected to the compressible fluid outlets collects and stores the compressed fluid generated by the compressor. A heat exchanger located in the conduit system cools the transfer fluid as it is pumped between the chambers. A bleed system reduces the volume of transfer fluid in the compressor whenever it exceeds the desired volume by a predetermined amount as a result of its absorbing moisture that is condensed out of the fluid being compressed.
REFERENCES:
patent: 1203335 (1915-06-01), Hill
patent: 1766998 (1930-06-01), Jacocks
patent: 2277977 (1942-03-01), Hesse
patent: 2549620 (1951-04-01), Mitchell
patent: 3891352 (1975-06-01), Tsukamoto
patent: 3907462 (1975-09-01), Kroeger
patent: 4265599 (1981-05-01), Morton
patent: 4566860 (1986-01-01), Cowan
Bertsch Richard A.
Kocharov Michael I.
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